I had a vision. It was red and orange and yellow and green and blue and purple; a complete rainbow. In Jello!
… but the only flavors I had on hand were pineapple, orange and strawberry, so I figured why not anyway? It’ll be half a rainbow! Yellow, orange and red. So exciting.
I had it all planned out: boil water, mix in Jello mix, wait for it to set and cool before repeating the process over again twice. And it really didn’t take all that long. But when it was finally time for dessert, I realized that I missed something very important…
All that work and the layers didn’t stick. 
I was crushed. Saddened. I didn’t even know Jello could behave that way.
*Sigh. So much for my first rainbow… I do like that funny little yellow starfish-like thing though.
